The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 1988
Filed:
May. 29, 1987
Applicant:
Inventors:
Jean A Lochet, Metuchen, NJ (US);
Raj B Patel, Piscataway, NJ (US);
Assignee:
Vanguard Research Associates, Inc., South Plainfield, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
204 443 ; 204 445 ;
Abstract
Gold plating baths comprising a nickel or cobalt brightener/hardener, containing oxalic acid and additionally at least one dicarboxylic acid selected from the group consisting of succinic acid, malonic acid, glutaric acid and adipic acid, enable the use of low current densities with improved efficiencies in producing bright deposits; also enable bright deposits to be obtained at high temperatures of about 150.degree. F.